Spinning mice (heh) are only random to a point, though, right? In so far as the fact that they don't spin for one part of the ride, then they're disengaged to do whatever it pleases. At that point, the weight of the passengers throws the car into random spins.
Thank god movement on that new Arrow isn't just random... talk about an upset stomach.
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How dare you vanquish the Steel Phantom without his consent? Fear the Phantom's Revenge.